Results 51 to 60 of about 75,280 (199)

Resonant Cyclotron Scattering and Comptonization in Neutron Star Magnetospheres

, 2005
Resonant cyclotron scattering of the surface radiation in the magnetospheres of neutron stars may considerably modify the emergent spectra and impede efforts to constraint neutron star properties.
Gavriil, Fotis P., Lyutikov, Maxim
core   +1 more source

The XMM-Newton view of Mrk3 and IXO30 [PDF]

, 2005
We present the analysis of the XMM-Newton EPIC pn spectrum of the Seyfert 2 galaxy, Mrk3. We confirm that the source is dominated by a pure Compton reflection component and an iron K$\alpha$ line, both produced as reflection from a Compton-thick torus ...
Anders, Andrew C. Fabian, Awaki, Awaki, Basko, Bearden, Bianchi, Bianchi, Cappi, Colbert, de Vaucouleurs, Dickey, Georgantopoulos, Giovanni Miniutti, Guainazzi, House, Iwasawa, Iwasawa, Kaastra, Kazushi Iwasawa, Kruper, Liedahl, Liedahl, Magdziarz, Matt, Matt, Matt, Miller, Molendi, Morse, Mukai, Ogle, Palmeri, Piconcelli, Porquet, Ptak, Reynolds, Sako, Stefano Bianchi, Strohmayer, Strüder, Tran, Turner, Turner, Verner, Woo, Yaqoob   +46 more
core   +1 more source

Relativistic coupled-cluster single-double calculations of positron-atom bound states [PDF]

, 2012
Relativistic coupled-cluster single-double approximation is used to calculate positron-atom bound states. The method is tested on closed-shell atoms such as Be, Mg, Ca, Zn, Cd, and Hg where a number of accurate calculations is available.
C. Harabati, D. M. Schrader, G. F. Gribakin, G. F. Gribakin, J. A. Ludlow, R. Szmytkowski, T. M. Miller, V. A. Dzuba, V. V. Flambaum   +8 more
core   +2 more sources

One dimensional time-domain non-linear site seismic response analysis program integrating two hysteresis models of soil

Frontiers in Earth Science, 2023
In the numerical simulation of site seismic responses, traditional equivalent linearization methods typically realized in the frequency domain cannot satisfactorily analyze the high-degree non-linearity of soil under strong input motions. Therefore, the “
Jingru Yan, Yushan Zhang
doaj   +1 more source

Long-term Evolution and Stability of Saturnian Small Satellites: Aegaeon, Methone, Anthe, and Pallene

, 2017
Aegaeon, Methone, Anthe, and Pallene are four Saturnian small moons, discovered by the Cassini spacecraft. Although their orbital characterization has been carried on by a number of authors, their long-term evolution has not been studied in detail so far.
Muñoz-Gutiérrez, Marco A., Winter, Silvia Giuliatti   +1 more
core   +1 more source

Instabilities in Multi-Planet Circumbinary Systems [PDF]

, 2019
The majority of the discovered transiting circumbinary planets are located very near the innermost stable orbits permitted, raising questions about the origins of planets in such perturbed environments.
Kratter, Kaitlin M., Sutherland, Adam P.
core   +2 more sources

Resonant Clumping and Substructure in Galactic Discs

, 2015
We describe a method to extract resonant orbits from N-body simulations exploiting the fact that they close in a frame rotating with a constant pattern speed. Our method is applied to the N-body simulation of the Milky Way by Shen et al. (2010).
Evans, N. W., Molloy, Matthew, Shen, Juntai, Smith, Martin C.   +3 more
core   +1 more source

Modeling the Stiffening Behavior of Sand Subjected to Dynamic Loading

Geosciences
In geotechnical engineering, dynamic soil models are used to predict soil behavior under different loading conditions. This is crucial for many dynamic geotechnical problems related to earthquakes, train loading and machine foundation design. Researchers
Majd Ahmad, Richard Ray
doaj   +1 more source

Determination of Shear Modulus of Soil in the RC/TS Apparatus for Designing Offshore Wind Power Plant Foundations

Polish Maritime Research, 2018
The paper presents a selected aspect of the determining the initial soil shear modulus value on the research example in resonant column – torsional shear apparatus (RC / TS).
Srokosz Piotr, Dyka Ireneusz, Bujko Marcin   +2 more
doaj   +1 more source

Fits to data for a stored uncooled polarized deuteron beam

, 2013
I perform tracking simulations to fit various measurements of the polarization for a stored uncooled polarized deuteron beam, published in the recent paper by Benati et. al (P. Benati {\em et al.}, {\it Phys. Rev. ST Accel. Beams} {\bf 15}, 124202 (2012))
Mane, S. R.
core   +1 more source